command-not-found - suggest installation of missing software packages in the terminal
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HowTo: install command-not-found
Introduction
[edit]From the Debian package description command-not-found
:
Suggest installation of packages in interactive bash sessions This package will install a handler for command_not_found that looks up programs not currently installed but available from the repositories.
Installation
[edit]The order in which these commands are run matters [1] but the process is idempotent. This means it is possible to re-apply all of the following steps.
1 Sysmaint Notice
- A If using
user-sysmaint-split: The user must boot into the sysmaint session. For details and instructions on how to do so, see user-sysmaint-split. - B If using unrestricted admin mode: This sysmaint notice does not apply. Continue with the steps below.
2 Delete file /etc/apt/apt.conf.d/30usability-misc. [2]
sudo safe-rm -f -- /etc/apt/apt.conf.d/30usability-misc
3 Install command-not-found.
Install package(s) command-not-found following these instructions:
1 Platform specific notice.
- Kicksecure: No special notice.
- Kicksecure-Qubes: In Template.
2 Update the package lists and upgrade the system.
sudo apt update && sudo apt full-upgrade
3 Install the command-not-found package(s).
Using apt command line --no-install-recommends option is in most cases optional.
sudo apt install --no-install-recommends command-not-found
4 Platform specific notice.
- Kicksecure: No special notice.
- Kicksecure-Qubes: Shut down Template and restart App Qubes based on it as per Qubes Template Modification.
5 Done.
The procedure of installing package(s) command-not-found is complete.
4 Update the command-not-found database.
sudo update-command-not-found
5 Done.
The setup of command-not-found has been completed.
Issues
[edit]Local variable 'cnf' referenced before assignment
[edit]- Debian bug report: Debian bug #917455
- Debian merge request: Debian Salsa merge request !1
See Also
[edit]- Related tool:
apt-file - Forum discussion: command-not-found - WARNING:root:could not open file '/etc/apt/sources.list'
- Forum discussion: Speeding up "apt update" with Acquire::Languages=none and Contents-deb::DefaultEnabled=false - It's so much faster!
Footnotes
[edit]- ↑
Also
apt updatecannot be skipped since package contents files need to be downloaded. - ↑
Delete
/etc/apt/apt.conf.d/30usability-misc
because it contains settings that speed up APT but break command-not-found.Acquire::IndexTargets::deb::Contents-deb::DefaultEnabled false;
This breaks
command-not-foundbecause it requires/var/lib/apt/lists/*Contents*to exist.See: Debian bug #857090
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